We occasionally see apps pulled from the Play Store for trivial (but valid) violations of the rules. Google has been more proactive about enforcing its guidelines, but it's often pointed out it could be more consistent. Case in point: there are, right now, two listings on the Play Store from a warez site called BlackMart that offers paid apps for free. One of them has been up for months and has more than 100,000 downloads. C'mon, Google.

Android Pirates

Have you ever seen one of those annoying comments on the Android Market promising the riches and all the Android apps in the world for a low-low monthly price of $10? Sites like that pirate paid games and apps off the Market and then distribute them illegally, pocketing all the revenue. That's modern day warez at its finest.

Whether it was because of Android's openness or Google's notoriously poor focus on the Market, no DRM or licensing protection was available in the SDK for developers to utilize; so unless you rolled your own licensing scheme from within the app (which had a side effect of circumventing Google's payment system and therefore netted developers a whole lot more than 70% rev share), your app was easily "piratable".